Queen's Gambit Declined - Tarrasch defence - Marshall gambit
1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. e4
White pushes the queen's pawn to d4. Black moves the queen's pawn to d5. White plays the c-pawn to c4.
Black advances the king's pawn to e6. White develops the knight to c3. Black advances the c-pawn to c5.
White captures on d5 with the c-pawn. Black captures on d5 with the king's pawn. White advances the king's pawn to e4.